| 摘要 |
A bare floor switch assembly(l l) for a power head or an upright vacuum cleaner(l?) includes a mounting bracket(76), an ?dler(72) and idler arm(74), pivotally mounted to the mounting bracket(76), a biaser(88) for biasing the idler(72) and idler arm(74) to an agitator drive interrupting position and a switch body(79) for engaging and locking the idler arm(74) into an agitator driving position. |
